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Advisory record · GHSA-289f-fq7w-6q2w

phpMyFAQ has unauthenticated SQL injection via User-Agent header in BuiltinCaptcha

CVSS 9.3 CriticalCriticalEPSS 0.017 · 77th percentile

Critical, because:

  • CVSS score 9.3: 9.0 or more.

How we decide what’s critical

Published by the GitHub Advisory Database at 6 May 2026, 20:49 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
thorsten/phpmyfaqPackagist<4.1.24.1.2
phpmyfaq/phpmyfaqPackagist<4.1.24.1.2
Identifiers
GHSA-289f-fq7w-6q2w · CVE-2026-46364 · PKSA-6nrc-qfr1-rds3 · PKSA-trv8-7xnx-t8d9
Weakness (CWE)
CWE-89
Tags
Published
6 May 2026
Updated
10 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

The phpMyFAQ Packagist packages thorsten/phpmyfaq and phpmyfaq/phpmyfaq, versions before 4.1.2, are affected by an SQL injection flaw in the BuiltinCaptcha component, where the User-Agent header and client IP are interpolated into database queries without escaping. An unauthenticated remote attacker can send a crafted User-Agent header to the public captcha endpoint to run time-based blind SQL injection, which the source says can expose user password hashes, the admin token and SMTP credentials, and can alter or delete rows. Upgrade to version 4.1.2, which is the listed fixed version.

Written 31 Oct 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
9.3 Critical 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CNA (VulnCheck)
  • CISA KEV Not listed.
  • EPSS 0.017, the 77th percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 15 May 2026, 18:36 UTC Confirmed by the CVE List
  2. 31 Oct 2026, 14:02 UTC First seen by agentprime
  3. 31 Oct 2026, 14:02 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.